Abstract This Doctoral Thesis investigates the feasibility of integrating non-contact sensors based on Conoscopic Holography (CH) technology into CNC production machines for inspection and verification tasks. A practical integration methodology was developed, comprising three levels: physical installation of the sensor, calibration of the machine-sensor system, [...]

Abstract: Additive manufacturing processes are opening up a world of possibilities towards obtaining parts with complex geometry and adjustable properties. Its impact in sectors such as biomechanics, energy or aerospace is already appreciable, but the forecasts point to a real revolution linked to the development [...]

Abstract The project aims to develop an integrated manufacturing and non-contact dimensional inspection system using sensors based on Conoscopic Holography (CH). To this end, these sensors will be integrated into machine tools, initially three-axis machines, by developing the necessary mounting, communication, control, and calibration systems, [...]

Abstract The lack of geometric and dimensional accuracy of parts produced by additive manufacturing (AM) is directly related to the machine, material and process used. This paper aims to propose a method for the analysis and compensation of machine-related geometric errors applicable to any AM [...]

Abstract A notable constraint to the industrial application of additive manufacturing processes is the lack of geometric accuracy of the parts produced. In-situ inspection systems, therefore, need to be developed to detect and compensate for any geometric deviations that appear during the process. This article [...]

Abstract: This paper presents the integration of a conoscopic holography sensor (CH) in a machining centre (MC) by means of a centralized control on the machine’s CNC (CNC centralized control). Besides the installation and extrinsic calibration of the sensor, the primary focus is the automation of the freeform digitizing [...]

Abstract: This work analyses the directional effect shown by the high-density point clouds digitized with a conoscopic holography (CH) sensor. The asymmetric shape of the laser spot for this sensor yields directionality to appear along the largest spot dimension and to occur repeatedly under different working conditions. To study [...]

Abstract: This work analyses the directional effect shown by the point clouds when digitizing with a conoscopic holography (CH) sensor. The asymmetric shape of the laser spot for this sensor yields that directionality appears along the greatest spot length and it occurs repeatedly under different [...]

Abstract: The current productivity requirements to facilitate the rapid delivery of high-quality products to market in which the accuracy achieved in the manufacturing plays a prominent role, have promoted significant advances in the machining and inspection phases on CNC machines. On Machine Measuring techniques (OMM) [...]

Abstract: The current requirement of precision on freeform surface machining, as well as productivity necessities which facilitate the supply of high-quality products to the market, have promoted an important progress on integration of machining and inspection stages on machining centres. On Machine Measuring techniques (OMM) [...]